10019220 has 24 divisors (see below), whose sum is σ = 28053984. Its totient is φ = 2671776.

The previous prime is 10019197. The next prime is 10019249. The reversal of 10019220 is 2291001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10019220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83434 + ... + 83553.

It is an arithmetic number, because the mean of its divisors is an integer number (1168916).

Almost surely, 2^10019220 is an apocalyptic number.

10019220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10019220 is an abundant number, since it is smaller than the sum of its proper divisors (18034764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10019220 is a wasteful number, since it uses less digits than its factorization.

10019220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166999 (or 166997 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 10019220 is about 3165.3151501865. The cubic root of 10019220 is about 215.5814081170.

The spelling of 10019220 in words is "ten million, nineteen thousand, two hundred twenty".